The Role of TRP Channels in Nicotinic Provoked Pain and Irritation from the Oral Cavity and Throat: Translating Animal Data to Humans.
Level 5 - mechanism / opinion, no new human data
Narrative review of mechanistic concepts and animal-to-human translational data without new empirical clinical testing.
PubMed 35199839 · doi:10.1093/ntr/ntac054
What was done
This narrative review synthesized mechanistic evidence regarding the neurobiological pathways of nicotine-evoked oral and throat irritation, burning, and pain, specifically focusing on the involvement of sensory nerve transient receptor potential (TRP) channels and the potential of Generally Recognized As Safe (GRAS) compounds to modulate these channels.
What was found
The abstract reports no numerical data. It describes that sensory nerves in the oral cavity and throat express TRP channels responsible for nicotine-induced sensory side effects, and that natural GRAS compounds can interact with these channels to potentially reduce irritation and improve adherence to oral nicotine replacement therapy (NRT).
Why it matters
Identifying pharmacological targets like TRP channels may guide the formulation of oral NRT products that reduce localized discomfort, which is a major driver of premature smoking cessation failure.
Limits
The paper is a narrative review presenting mechanistic and animal-to-human translational arguments rather than primary experimental data. No clinical trials, sample sizes, or quantitative outcome measures are reported in the abstract.
Cited by
- contradicts Throat spasms associated with nicotine use are caused by muscarinic acetylcholine stimulation.